<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8" />
  <meta http-equiv="X-UA-Compatible" content="IE=edge" />
  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
  <title>Document</title>
  <link rel="stylesheet" href="./css/index.css" />
</head>

<body>
  <div class="container">
    <ul class="top">
      <!-- 基础模板 -->
      <!-- <li>
        <a href="javascript:;">首页</a>
        <ul class="sub">
          <li>
            <a href="javascript:;">
              <span>砂锅厨具</span>
              <img src="https://yanxuan.nosdn.127.net/3102b963e7a3c74b9d2ae90e4380da65.png?quality=95&imageView" alt="">
            </a>
          </li>
        </ul>
      </li> -->
    </ul>
  </div>
  <script src="./axios.js"></script>
  <!-- <script src="./index.js"></script> -->
  <script>
    // 获取axios基地址
    axios.defaults.baseURL = 'http://ajax-api.itheima.net'

    const list = document.querySelector('.top');
   
    // 发起一级请求
    axios({
      url: '/api/category/top',
      method: 'GET',
    })
     .then(({data: res}) => {
      // console.log(res);
      // 发起二级请求
      const requestArr = res.data.map(item => {
        return axios({
          url: '/api/category/sub?id=' + item.id,
          method: 'GET',
        })
      })
      return Promise.all(requestArr)
     })
      .then((res) => {
        // 渲染页面
        const html = res
          .map(({data: item}) => {
            console.log(item);
            return `
              <li>
                <a href="javascript:;">${item.data.name}</a>
                <img src="${item.data.picture}" alt="">
                <ul class="sub">
                  ${item.data.children
                    .map((item) => {
                      return `
                        <li>
                          <a href="javascript:;">
                            <span>${item.name}</span>
                            <img src="${item.picture}" alt="">
                          </a>
                        </li> `
                  })
                  .join('')
                }
                </ul>
              </li> `
          })
          .join('')
          list.innerHTML = html
      })

  </script>
</body>

</html>